Google Tech Talks
February, 28 2008

ABSTRACT

Intel recently published more precise memory ordering principles for the
IA32 and Intel Architecture 64 (aka x86) processors. This talk discusses
the key principles embodied in this memory ordering and explains some of
the software driven motivation behind them. Along the way we discuss
issues such as publication safety and how to use the principles to
implement the memory models found in high level programming languages.
The presentation is aimed at developers of concurrent shared memory
software and will provide a presentation of the principles as well as
guidance on how to reason about them.

This is joint work with Bratin Saha and many others both inside as well
as outside Intel.

Speaker: Richard L. Hudson
Richard L. Hudson is best known for his work in memory management
including the invention of both the Train Algorithm and the Sapphire
Algorithm. Richard joined Intel in 1998 where he has worked on memory
management, concurrency, synchronization, and memory…

http://www.Cppcon.org
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Presentation Slides, PDFs, Source Code and other presenter materials are available at: https://github.com/cppcon/cppcon2015
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In this talk we will describe a new concurrency control algorithm with Blocking write operations and Wait-Free Population Oblivious read operations, which we named the Left-Right algorithm.

We will show a new pattern where this algorithm is applied, which requires using two instances of a given resource, and can be used for any data structure, allowing concurrent access to it similarly to a Reader-Writer lock, but in a non-blocking manner for reads, including safe memory management without needing a Garbage Collector.
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Pedro has a PhD in Particle Physics for research done at CERN. Most of the research itself required programming in C++, and I also had a major participation in the coding of the experiment's data acquisition and decoding software in C and C++. I'm currently working at Cisco writing networking software, with emphasis on real-time concurrent synchronization…